Improved machine for rolling car-axles



NG GAR AXLBS.

'I'. COOP MACHINE PoR RoLLI Patented Oct. 17, 1865.

UNITED STATES PATENT OFFICE.

THOMAS COOPER, OF CINCINNATI, OHIO.

Specification formino.` part of Letters Patent No. 50,458. dated October 17, 1865.

To all whom 'it may Icomiern Be it known that I, THOMAS COOPER, of

Cincinnati, in the county of Hamiltonv and State of Ohio, have invented anew and Improved Machinepfor Rolling Car-Axles, Shaft# 1ng,&c.; and I do hereby declare that the following `is a full, clear, and exact description thereof, which will enablethose skille'd in the art to make and use the same,'ref erence being had to the accompanying drawings, forming part of this specification, in which- Figure l isa vertical. section of my inven-l parts.

- This invention relates to a new and improved machine -for rolling car-axles, shafting, Sto., Into'the proper or desired form and at one operation.

A represent two vertical head-pieces, which are securely attached'to a base-plate,

B, and have the bearings a of two horizontal and parallel shafts, C'C, fitted in them.

D represents a driving-shaft, which has a pinion, E, keyed firmly upon itsaid pinion gearing into wheels F F, keyed on the shafts C C, and cause 1'saidl shafts to rotate in the same direction, as indicated by the arrows in Fig. 1. On each'shaftC there is tirmlykeyed or secured a roller, D, and the longitudinal proiile of these rollers are made to correspond inversely with that ot' the axle or shaft to be rolled. For instance, the drawings represent a machine 'for rolling car-axles, and as the latter gradually diminish 'in diameter from their ends toward their centers, the rollers D are made with a corresponding convex exterior, as will be understood byreferrng to Fig. 3. On the same shafts C C there are placed rollers E, two on each shaft, and one at each end of the roller D. These rollersE may be considered as continuations of the rollers D, and they are made of a form corresponding .withtbat designed to be given the axle or shaft near its ends. The rollers E at their ends are enlarged, as shown at b,and are grooved circumferentially to receive parallel bars F' F', the ends of which are connected by uprights or standards G G, one bar F being above the shafts C C, and .the other below them, as shown in Fig. 1. y

H H represent two parallel horizontalshafts, which are secured one at each end of the heads A A, and on which the uprights orstandards G of the bars F are fitted loosely and allowed to slide freely, said shafts haring spiralsprings I upon them, the inner ends ot' which bear against the uprights or standards G, the outer ends bearing against the bearings J of the shafts'H. The spiral springs I h a'vea tendency to keep the rollers E in contact with the ends of the rollers D, in consequence of the connection of the bars F with said rollers. This will be fully understood by referring to Fig. 2.

' ('lhe rollers D and E are eccentric, the pressure on the. bar or shaft to be formed being obtained by this means, (see Figs. 1 and 4,) and the bar or shaft is retainedin proper position Vbetween the rollers by `means of rests K K', the former being fixed and the latter secured in position .by means ot' keys c c, which pass horizontally through standards L L, into which arms d d, at the upper part of K', are placed.

The rollers E E are allowed to slide on the shafts C C, but are made to turn with them in consequence ot' a feather, e, on the shaft-s fitting in grooves in the rollers. (See Fig. 4.

Thevbar shown in red in Fig.'5 is inserted between the rollers through an opening, f, in one of the heads. A, and the rollers in revolviu g fashion or form the axle or shaft, the press` ure, as before stated,being caused by the eccentricity of the rollers.

By having the' rollers E arranged so as to slide on the shafts C C the device may be used for rolling axles or shafts of a greater or less length, and the bearings of the shafts Cfmay be adjusted laterally to suit the thickness of the bar to be rolled.

I claim as new. and desire to secure by Letters Patentl. The combination of the twoeccentric roll- 'ers D D and rest-s K K', arranged to operare substantiallygas and for the purposes set forth.

2. The sliding or adjustable rollers E, placed 0h the same shafts U as the rollers D, and controlled by springs I, substantially as and for the purpose set forth.

THOMAS COOPER.. Witnesses:

N. MANHANT, W. H. PHILLIPS. 

